NIH-funded research R21 grant

Understanding how certain bacteria attach to heart tissue during infections

Official title: Defining a novel mechanism of adhesion present in multiple infective endocarditis causing species

Funded at Research Inst Nationwide Children's Hosp · NIH-10748408 · Data updated 2026-11-12

This study is looking at how certain bacteria stick to blood cells in the heart, which can help us understand and find better ways to prevent and treat heart infections, especially for people who are at risk.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionResearch Inst Nationwide Children's Hosp
NIH-funded
Lab location1 site (Columbus, United States)
Project startDecember 5, 2022
Project endNovember 30, 2025
Funding year2024
Award (this year)$224,400
NIH project number5R21AI169339-02
Project IDNIH-10748408 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research include individuals at risk for infective endocarditis, particularly those with pre-existing heart conditions.

Less likely to help

Patients who do not have any risk factors for infective endocarditis or related heart conditions may not benefit from this research.

What this research studies

This research investigates the mechanisms by which specific bacteria, particularly Streptococcus oralis and Streptococcus mitis, adhere to platelets in the context of infective endocarditis (IE). By exploring the role of a newly identified protein, AsaA, and its interaction with sialic acid on platelets, the study aims to uncover new insights into bacterial adhesion processes. The research employs advanced techniques to analyze these interactions, which could lead to the development of new preventive and therapeutic strategies for IE. Patients may benefit from a better understanding of how infections can affect heart health.

Why it matters

Potential benefit: If successful, this research could lead to new treatments that prevent bacterial infections from causing serious heart conditions.

How similar studies have gone: Other research has shown promise in understanding bacterial adhesion mechanisms, but this specific approach involving AsaA is relatively novel.

Where this research is happening

  • Research Inst Nationwide Children's Hosp
    Columbus, United States
    Active

Researchers

  • Principal investigator: King, Samantha Jane — Research Inst Nationwide Children's Hosp
  • Study coordinator: King, Samantha Jane

Related research

Other NIH-funded projects on the same topics.

  • Co-treated care for substance use and heart infection at UVMMC

    A hospital-based project aims to improve how doctors and teams treat people with both substance use disorder and infective endocarditis during their hospital stay.

    NIH research University of Vermont & St Agric College · Burlington, United States · NIH-11599499

  • Non-surgical dental care and oral hygiene to lower risk of infective endocarditis

    This project tests whether professional dental cleanings plus clear home oral hygiene instruction can reduce the mouth bacteria that enter the bloodstream and may cause heart valve infections in people with certain heart conditions.

    NIH research Wake Forest University Health Sciences · Winston-Salem, United States · NIH-11285146

  • Understanding the risk factors for heart infections caused by Enterococcus faecalis

    This study is looking at how bacteria and your health information work together to help us understand what might increase the risk of a serious heart infection called enterococcal infective endocarditis, so we can find better ways to treat and care for patients like you.

    NIH research Broad Institute, INC. · Cambridge, United States · NIH-11136217

  • Improving oral hygiene to lower the risk of heart infections from bacteria

    This study is looking at whether improving your oral hygiene, like getting professional dental cleanings and learning better brushing techniques, can help lower the chances of getting a serious heart infection called infective endocarditis, especially for people who already have heart conditions.

    NIH research Wake Forest University Health Sciences · Winston-Salem, United States · NIH-11039835

  • Understanding outcomes and treatment preferences for heart infections related to drug use

    This study is looking at what happens to people in North Carolina after they leave the hospital for a serious heart infection caused by drug use, focusing on their experiences, challenges like overdoses or returning to the hospital, and what kind of treatment they prefer to help them with their ongoing struggles.

    NIH research Univ of North Carolina Chapel Hill · Chapel Hill, United States · NIH-10810845

  • Al[18F]F-NOTA-folate PET imaging in suspected cardiac sarcoidosis and infective endocarditis

    This diagnostic test uses a folate-based PET tracer to see if it can help identify inflammation or infection in the heart for people with suspected cardiac sarcoidosis or infective endocarditis.

    Recruiting Turku University Hospital · Turku · NCT07814222

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.